Roller-bearing.



J. A. PERKINS.

ROLLER BEARING. APPLICATION FILED NOV. 26. ISHZ- RENEWED FEB.8,1917.

1 @19D Pafentedfiept. 11,

2 SHEETS-5HEE I- I i/fgi/Mdf/Wy J. A. PERKENS.

ROLLER BEARING.

APPLICATION FIL-ED mmzs. 1912. RENEWED FEB. a, ILQQ MQ mm a 2i mm y +1.Km Wm r vm l Mm E M7 @8 y UE 3mm A nest:

Original application filed December 9, 1908, Serial No, 466,582.

1911. Divided and this application filed November 26, 1912,

eras nascent o inion,

JULIUS A. PERKINS, O F OMAHA, NEBRASKA.-

ROLLER-BEARING.

8, 1917. Serial No. 147,493.

Douglas and State of Nebraska, have invented certain new and usefulImprovements in Roller-Bearings, of which the following is aspecification, such as will enable those skilled in the art to which itappertains to make and use the same.

This invention relates to roller bearings with particular reference tothe use thereof In car journal boxes and in which a cage is employed"for guiding the rollers in their planetary movement about the journal ofthe car'axle, said rollers being radially movable in said cage in themanner clearly set forth in an application for Letters Patent of theUnited States filed by me December 9, 1908, Serial No. 466,582, and theobject thereof is to provide roller raceway tracks arranged beneath thesaid axle and which serve not only as supports for the said rollers atdifferent points in the lengths thereof, whereby the rollers arepermitted to readjust themselves at the point of-full clearance from thejournal if displaced for any cause, but also insures the clearing of allscale or other matter, From both tracks and rollers which might becomelodged thereon in the planetary movement of said rollers; a furtherobject is to form the said'tracks of two inclined members crossing eachother centrally of said box and resembling, in plan view, the letter X,thus ensuring a central roller support at the point of full journalclearance; a further object is to so space the central portion of thesaid tracks. at the point where they cross each other, from the journalof the axle, as to permit a complete clearance of the said rollers fromthe said journal. this being accomplished by making the diameter of theouter bearing member, of which the said tracks a re a part, slightlygreater than the normal external diameter of the said cage of rollers.this being necessary in order to insert my cage of. rollers within thesaid outer bearing member and. as the axial sl rain is at the top of thebox and journal. the rollers at. the bottom there of, especially in theaxial line of the journal. a re tree to clear the said journal and restupon the said tracks; a lurthcr object is to Specification of Letterslatent.

frictional bearing Patented Sept. ill, 191?,

Patent No. 1,002,441, dated September 5, Serial No. 733,592. RenewedFebruary provide a web for each of the said tracks, said webs beingprovided with openings thercthrough permitting th free passage oflubricants when roller bearings are employed, and permitting also theinsertion of oily waste or other packing if the usualfrictional bearingsshould be employed instead of the roller bearings, and with these andother objects in view my invention consists in the constructionhereinafter described and claimed. 1

h'ly invention is fully described in the following specification. ofwhich the accompanying drawings form a part, in which the separate partsare (lesignated by the' same reference characters in each of the views,and in which Figure l. i ayei'ticzil section taken through a car journalbox constructed in accordance with my present invention, and showingroller bearings therein;

Fig. 2 is a section thereof on the line 22 ot Fig. 1; j

Fig. 3 is a view similar to Fig. 1 but with the axle and bearingsremoved; and Fig. 4 is a plan section on the the line H oi Fig. 3.

Tn the drawings forming a part of this application. l have. shown a carjournal box 1/ of conventional exterior and preferably adaptedinterior-ally for the interchangeable use of the conventional brass andwedge and anti-frictional bearings. the latter being shown in thedrawings and comprising a series of rollers 7) carried by a cage 7%.7(l3\\'((n which and the top of the box interior a bearing member 5 isemploycd. said bearing member being held by integral lugs (n on eitherside of the box interior. this construction being clearly set forth inthe application above referred to, and the rollers encircle the journalof an axle a within the said box, the said rollers being preferablyprovided with end guides radially movable in the cage 5 In the bottom ofthe box a I provide a center track 0 having four inclined branchesarranged .in pairs 0 and 0 respectively, giving the appearance of theletter X, and said branch tracks are approximately con centric with theaxle (1- and extend upwardly alone the sides of the box a predetermineddistance, as clearly shown in Figs. 2 and 3 and I provide the webs c ofthe said tracks with openings 0 permitting the free passage oflubricants therethrouglr when roller bearings are employed andpermitting also the insertion of suitable packing when frictionalbearings are employed,

as well as permitting the escape of scale or of constructionshown, Icurve the lower,

ends of the 111 s a as shown at a concen- I trically with t e axle asaid lugs serving as a bridge in the roller raceway between the bearingblock b and the tracks 0, c, and 0 the outer bearing for the saidrollers thus comprising a plurality of these elements and being made ofa diameter slightly greater than that of the roller exteriors, wherebythe said cage of rollers may be inserted into the said outer bearingafter being assembled about the journal of the axle and, as the axialstrain is upon the rollers interposed be tween the journal and thebearing block 6 there is a slight increase in the space between; thejournal and the track a over the diameter of one of the rollers, thuspermitting the rollers in the axial line of the box and closely adjacentthereto to clear the said 'ournal and rest upon the crossed portion ofthe said tracks because of the radial movement of the said rollers inthe cage.

The rollers in their planetary movement about the journal pass to thetracks at the extremities of the corresponding branches thereof and aresupported at this point at each end thereof thus permitting any scale orother foreign matter thereon, between the ends, to drop into the bottomof the box, which thus becomes a refuse receptacle and,

in the further movement of the rollers over the said tracks, thisunengaged portion of the rollers becomes smaller and smaller until thebottom of the box has been reached at which time the rollers aresupported centrally; thereof, thus permitting the clearance of scale 'orforeign matter from the portions of the roller ends on either side ofthe track 0.

When a roller is in this position, it is practically balanced in thecenter thereof,

- clear of the journal andlis permitted to readjust itself if displacedfrom normal position '1nits planetary movement for any cause, afterwhich the said roller or rollers rise gradually upon the other side oftrack branches, beginning a new cycle of movement and, in this movement,the engagement of the said rollers with the journal is gradual becauseof the gradually decreased distance between the tracks and the journal,from the track 0 to the end of the branches thereof, the gripping of thesaid rollers thus being smoothly performed and, in this upward movementon the track branches, the rollers are again permitted to clearthemselves of extraneous matter which might possibly not have beencleared therefrom in 1 their downward movement over the opposite side oftrack branches.

My invention therefore consists in a plurality of diagonally arrangedtracks in the bottom of the box crossing each other in the median lineof the box whereby a relatively small roller bearing surface results,the arrangement of the tracks being such as to expose the entire lengthof rollers passing thereover above the refuse receptacle in the bottomof the box and, because of the central portion 0, the rollers arepermitted to readjust themselves as hereinbefore stated if displaced intheir planetary movements, this form of construction being valuableunder certain conditions and forming a continuity of roller support.

Having fully what I claim as new, and desire to secure by LettersPatent, is 2-- A journal box having a roller bearing member in the upperpart thereof, a journal in said box, rollers interposed'between-saidjournal and bearing member, and roller bearing tracks in the lower partof said box, said tracks being two in number arranged at an angle to theaxial plane of said journal and crossing each other in said axial planebeneath said' journal whereby said rollers are supported and cleared atgradually presence of the subscribing witnesses this 16th day ofNovember, 1912.

JULIUS A. PERKINS.

Y Witnesses:

J. C. LARSEN. H. C. Korr.

throughout the lengthdescribed my invention,

